USDZ is a 3D file format that shows up as AR content on a website.

USDZ Documentation

Posts under USDZ tag

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Xcode 13 - USDZ available animation didn't work

After I update the Xcode to 13 the animation that comes with the USDZ is not played anymore in the Reality Composer / RealityKit even though it's working fine on older Xcode 12 and 11 the problem: 'Nothing happens when playing any USDZ animation even when running it on a real device' Does anyone face this problem cause didn't find a solution and update to fix it yet
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by Ahmad1652.
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Problem with black background when taking a photo with AR Quick Look feature in iOS 15

Has the problem of the black background when taking a picture with the AR Quick look function in iOS 15 been resolved? I think it's a rather serious bug. On an iOS 15 device, go to the Quick Look page below and display any of the multiple 3D models in AR Quick Look; the background will be black when you take a picture with the AR Quick Look shooting function. https://developer.apple.com/augmented-reality/quick-look/ There are similar events below, but they do not seem to be addressed at all. https://developer.apple.com/forums/thread/691784
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Animation cannot be played in AR scene

Xcode:13.1 iOS:15.1 USDZ:https://sketchfab.com/3d-models/spartan-armour-mkv-halo-reach-57070b2fd9ff472c8988e76d8c5cbe66 The animation can be played in iOS14, but after I update to iOS15, the animation cannot be played. Thanks import UIKit import ARKit import RealityKit import Combine class ViewController: UIViewController {       @IBOutlet var arView: ARView!       var rootAnchor: AnchorEntity!           override func viewDidLoad() {     super.viewDidLoad()           rootAnchor = AnchorEntity(plane: .horizontal)     arView.scene.addAnchor(rootAnchor)           var cancellable: AnyCancellable? = nil     cancellable = Entity.loadAsync(contentsOf: Bundle.main.url(forResource: "Spartan_Armour_MKV_-_Halo_Reach", withExtension: "usdz")!)       .sink(receiveCompletion: { error in         DispatchQueue.main.async {          cancellable?.cancel()          cancellable = nil         }       }, receiveValue: { [weak self] ey in         guard let self = self else { return }         self.rootAnchor.addChild(ey)         ey.availableAnimations.forEach {           ey.playAnimation($0.repeat())         }         DispatchQueue.main.async {           cancellable?.cancel()           cancellable = nil         }     })   } }
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by caopengxu.
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AR Quick View's AR Quick View button cannot be pressed on some iOS devices.

AR Quick View's AR Quick View button cannot be pressed on some iOS devices. As for the iPhone 12 Pro, the AR Quick View button cannot be pressed on iOS 15 when reading from the standard iOS QR code reader, but the AR Quick View button can be pressed on the iPhone 12 Pro with iOS 14. On other devices, you can press the AR Quick View button when launching from Safari, but you cannot press the AR Quick View button when accessing from the standard QR code reader. Also, on some iOS devices, the AR Quick View button cannot be pressed. The problem seems to be occurring outside of the https://konabeer.jp/beach-diorama-ar/ as well. Is there any way to avoid this AR Quick View button not being able to be pressed? It would be very helpful if I could get more information than just the solution to this problem. iPhone7(iOS13):OK iPhoneX(iOS15):QR Code Reader:NG iPhone11(iOS14):OK iPhone12Pro(iOS14):OK iPhone12Pro(iOS15):QR Code Reader:NG iPhone12(iOS15.1):QR Code Reader:NG iPad Air(iOS15):QR Code Reader:NG iPhoneSE(iOS15):QR Code Reader:NG As a result of our own verification, the AR Quick Look button is deactivated on iOS 15 and when the QR code is imported from the Control Center. If you know of any known bugs or workarounds, or if there are any informative sites that have information on this issue, I would appreciate it.
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USDZ thumbnail removed from iMessage in iOS 15

In iOS 14 a thumbnail for a USDZ or Reality file would appear in the native Messages App on the iPhone and iPad, the thumbnail was a preview of what the USDZ contained. In iOS 15 this thumbnail has been replaced with just an image of a white file with the name of the USDZ underneath.  I send previews of my products to customers through iMessage and it was proving very successful until iOS 15, but now I’m getting lots of reports that they won’t open up the file as it looks like malware. I’ve attached two images of the your toy drummer (from your quick look gallery) in the Messages app and what it looks like in iOS 14 and iOS 15.  Any thoughts on the matter would be greatly appreciated.
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Obj converted with Reality converter fails to show on Quicklook

Hi all, I have an .obj model which I converted using Reality converter. When trying to load it in safari quicklook, it pops up an error "Object requires a newer version of iOS" I'm on an iPhone X with iOS 13.6. Any thoughts? Thanks
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by edmarvis.
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'ModuleNotFoundError: No module named '_usd'' when importing USD

So, I'm using some small python script that imports from pxr import Usd, Sdf, UsdGeom, Kind which used to work fine a few months ago. I got the USD tools from https://developer.apple.com/augmented-reality/tools/ and always had to run it in a Rosetta-Terminal (plus making sure the USD tools are in PATH and PYTHONPATH) but it worked. Now, whatever I do I always get   File "create_scene.py", line 2, in <module>     from pxr import Usd, Sdf, UsdGeom, Kind   File "/Applications/usdpython/USD/lib/python/pxr/Usd/__init__.py", line 24, in <module>     import _usd ModuleNotFoundError: No module named '_usd' Does anyone have any clues what this _usd is about?
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by Bersaelor.
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Nested usdz-files

Hi! I've been working with AR Quick Look a lot recently and find it really useful. However, when I'm combining two .usdz-files into one, the experience isn't as great. I'm working with 3D-models that are supposed to be attached to vertical surfaces, and one by one they work flawlessly. But as soon as I add more models into the same, the objects won't "stick" as close to the wall as they do when they are separated. It's like there are some sort of "margin" applied to it. To create nested .usdz-files, I use Apple's command line tool: $ usdzcreateassetlib outputFile.usdz asset1.usdz [asset2.usdz [...]] Any idea why this might be the case? Thanks!
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by oladam.
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Reality Composer USDZ Export wrong colors

Hi, So I created a scene in Reality Composer but when trying to export to USDZ, all of the animations, audio and interactions work, but the textures have been completely changed... (Map should be green, for example) Everything looks fine in Reality Composer Unfortunately, exporting as a .reality file isnt an option in this project. Could I get some insight into this please? Thank you
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by Vanta.
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AR not working on iOS but works well on Android

Hello, I have added the .usdz file in my website for iOS for a 3D model but it keeps giving me the error’ object requires a new iOS version’ when I click on the AR button. I have tried on multiple apple devices. Works great on android. Tried through safari as well as chrome. Any help would be appreciated. Thanks
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by Gdnd.
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AR Quicklook's awesome Playback feature isn't being used as much with the recent changes

One of people's favourite features of AR Quicklook is the video playback. Aside from the feature its self, what it represents is familiarity as people have used it in video for decades so it helps place AR right next to other common formats, which is awesome! Previously, if a USDZ's animation was longer than 10 seconds, the playback would appear. This rule was recently changed to allow the option from the USDZ metadata using the python tool. Unfortunately most designers are still not using the python toolkit so the feature is now hidden in most cases, which is too bad. Would be great to add the ability to set that metadata from Reality Converter &amp; Composer. Better yet, if it was available as an html fragment identifier it would be super helpful, similar to "allowsContentScaling"
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by ShapSa.
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Quick Look - error message - model Universal Scene Description Package

Hi guys, I have a little problem with Quick Look and I am not sure, if it is because of 3D model, iPhone 8 or if there is a bug from Apple side. What is hapenning? I am able to download 3D model to my iPhone 8, then I am able to place 3D model on my table and in the moment when I place it, Quick Look stop to work. There is this message: "model Universal Scene Description Package 2,9 MB" Do you know, where can be the problem? YT video: https://www.youtube.com/watch?v=wZKlPZUJkbk&ab_channel=AZtutorialy USDZ file: https://drive.google.com/file/d/1TcL4VoISRuMtdHd3XoW_Se4Lq6tNucYt/view?usp=sharing I am looking forward to read you answers. Thank you very much in advance Have a nice day Jan
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by Jan-M.
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Does Apple plan on supporting PNG Alpha in AR or not? It's been two years.

This thread actually marks an unsolved problem as "accepted"/solved https://developer.apple.com/forums/thread/119265 As of iOS 14/15 Apple's own QuickLook does not support: On iOS and in AR, any USDZ with PNG transparency. It's a shame and testament to the AR dev team's (in)ability to address this issue. Multiple tweets and a basic google search shows this problem existing for over 2 years and now entering the third year. Meanwhile formats such as GLTF/GLB... just work
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by dirrogate.
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iOS AR 3DMesh Texture export .obj

We are able generate 3D mesh model, but it appears white , as we didn't get texture files in .mtl file. We found way to generate texture model from set of images at the below links https://developer.apple.com/documentation/realitykit/creating_3d_objects_from_photographs LiDAR and RealityKit – Capture a Real World Texture for a Scanned Model However photogrammetry(object capture API) it works on MAC, we want to achieve this into iPhone and iPad. We could see this happening in "3D scanner app" and "Polycam app". Please suggest how we can resolve this. Thanks in Advance.
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polygon count vs. triangle count?

In a previous post I asked if 100,000 polygons is still the recommended size for USDZ Quick Look models on the web. (The answer is yes) But I realize my polygons are 4-sided but are not planar, so they have to be broken down into 2 triangles when rendered. Given that, should I shoot for 50,000 polygons (i.e., 100,000 triangles)? Or does the 100,000 polygon statistic already assume polygons will be subdivided into triangles? (The models are generated from digital terrain (GeoTIFF) data, not a 3D modeling tool)
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by Todd2.
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